Home / 89,197,969.60-123,145,965.12-56,186,516.80

Finding the Fourth Proportional to 89,197,969.60, 123,145,965.12 and 56,186,516.80

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Solution

The fourth proportional to 89,197,969.60, 123,145,965.12 and 56,186,516.80 is: 77,570,631.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,197,969.60 : 123,145,965.12 = 56,186,516.80 : x
  2. Step 2: Convert to fraction form
    89,197,969.60/123,145,965.12 = 56,186,516.80/x
  3. Step 3: Cross multiply
    89,197,969.60x = 123,145,965.12 × 56,186,516.80
  4. Step 4: Simplify right side
    89,197,969.60x = 6,919,142,838,067,094
  5. Step 5: Solve for x
    x = 6,919,142,838,067,094/89,197,969.60
  6. Step 6: Final answer
    x = 77,570,631.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.